PC400×300锤式破碎机设计【单转子、多排锤、不可逆式】【说明书+CAD】
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单转子、多排锤、不可逆式
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Investigation on Kinetic Features of Multi-Liners in Coupler Plane of Single Toggle Jaw Crusher Cao Jinxi, Qin Zhiyu, Wang Guopeng, Rong Xingfu, Yang Shichun College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China Abstract- A jaw crusher is a kind of size reduction machine which is widely used in mineral, aggregates and metallurgy fields. The performance of jaw crusher is mainly determined by the kinetic characteristic of the liner during the crushing process. The practical kinetic characteristic of the liners which are located in certain domain of the coupler plane are computed and discussed. Based on those computing results and analysis for the points chosen from the liners paralleling coupler plane, unique swing features and kinematics arguments are determined in order to build the kinetic characteristic arguments. The job is helpful for a design of new prototype of this kind of machine on optimizing the frame, designing the chamber and recognizing the crushing character. Keywords - jaw crusher, liners, kinetic features, kinematics argumentsI. INTRODUCTION The performance of a jaw crusher is mainly determined by the kinetic characteristic of the liner during the crushing process. The liner motion is not in translation, but complex swing one 1. Features and analysis of liner motion is a necessary foundation for better jaw crusher design In previous researches much attention has focused on an analysis of the straight-line along the direction of the couple of the fourbar crank-rocker 2345 or the designed liner in a stereotypy jaw crusher6 based on a fourbar crank-rocker model, the results of which cannot reflect the kinetic characteristic and the variation trend of optimizing points which should be used in a crushing interface. With those kinds of traditional designing ways the kinetic characteristic of any points in the coupler plane and the correlation among those characteristic can not be fully described. In this paper, a certain domain, called the liner domain, of the coupler plane is chosen to discuss the kinetic characteristic of a liner or a crushing interface in the domain. Based on the computation and the analysis of the practical kinetic characteristic of the points along a liner paralleling to the direction of coupler line, some kinematics arguments are determined in order to build some kinetic characteristic arguments for the computing, analyzing and designing. The job is helpful for a design of new prototype of this kind of machine on optimizing a frame, designing a chamber and recognizing a crushing character. II. CHOOSING THE POINTS ON LINERS FOR COMPUTINGA liner of jaw crusher is an interface for analyzing the crushing force, on which the crushing force occurs, in other words, the directly contact and the interaction between the material and the liner occur there. So the interface has great effect on the crushing feature of jaw crusher. The liner is one of the curves in the cross-section of the couple plane, which is also given a definition as one of the coupler curves in a fourbar crank-rocker model. Since different positions of liners in the coupler plane have different moving features, the motion of points along the liners in the computing domain is quite different from that of them in the straight-line coupler of the simple fourbar crank-rocker model. Therefore, it is necessary to consider motion differences caused by different liner positions and their motion features to select a coupler curve as the swing liner with good crushing character. Based on the fourbar crank-rocker model, the system sketch of jaw crusher for calculating is shown in Fig. 1. The global static coordinate is XOY and the dynamic coordinate is UCV. Although a real shape and position of a fixed working liner is usually determined by a suspension point of the jaw crusher, computation of a liner will be done on the one of chosen curves in the liner domain. Thus with different position on the liner, each computing point on it liners will arrive at the limit position at different time. On a traditional designing way, the limit position is usually determined by the horizontal motion distance which is simply used as a designing factor or parameter to describe a moving feature of the liner. However it is well known that a practical crushing force exerted on fractured material is in the normal direction of the liner. The normal direction of each point in the liner changes in one operation cycle. So a distance between the limit positions in normal direction of those points is quite different from that of the displacement of horizontal motion. In order to describe the kinetic characteristic of the points in the liner domain, the single toggle jaw crusher PE400*600 is taken as example to compute and analyze the distributed kinetic characteristic. The calculation parameters of the PE400600 are shown in Table I. In order to illustrate the motion of the points in liner domain, it is needed to define the liner domain. Some planes paralleling to the BC are selected and each plane is divided into 20 equal parts. In the U direction, 7 evenly distributed points are selected from the-300 to 300 and in the V direction 21 evenly distributed points are selected from -200 to 1800. So there are 21 points selected to be calculate in the V direction for a certain U. With the points for computing and the liner domain chosen as above mentioned, computing results are shown in the follows. 16391-4244-0737-0/07/$20.00 c ?2007 IEEEFig. 1 Jaw crusher sketch TABLE I PE400*600 JAW CRUSHER CALCULATION PARAMETERS (mm)r l k a b N(rpm)12.0 1085.0 455.0 45.3 815.7 300 Where r is crank AB, l is the coupler BC, k is the rocker CO, a and b are X and Y component of the A point and N the rotation speed of the crank. III. MOVEMENT COMPUTATION AND FEATURE ANALYSIS OF POINTSThe mechanism of the jaw crusher is shown in Fig. 1. Given the rotation direction of the crank AB is clockwise. Where ?90 and 1) 1)(1()(sin2222+=nmnmnmn (1)sincosnm+= (2)cos(2)cossin(222222rblbarklrbam+= (3)cossinrbran= (4)Given the position of any point in coordinate UCV is (u, v) and in coordinate XOY is (x, y) Then sinsin)(cosravlux+= (5)coscos)(sinrbvluy+= (6)And the velocity of the points can be express as following equations: ()?=ddurddvlvXsincoscos (7)()?+=ddurddvlvYsinsinsin (8)?+=)cos()(rddvlvU (9)?+=)sin(rdduvV (10) ?+=sin)cos(sinsin)cos(cos)sin(rbrabllalrdd (11)-400 -200 0200 400 600 800-600-400-20002004006008001000120014001600YXUVm mm mFig. 2 Calculation paths of different pointsThe path of the points in liner domain is shown in Fig. 2. It is shown in Fig. 2 that the path of any point is a closed curve that is analogous to an ellipse. The path of different point is different, and the variation of the shape has a certain law. It is shown in equation 9 that the point with the same V component has the same velocity component in the U direction, i.e., the U component has no effect on the velocity component in the U direction. The variation of the velocity component in U direction relative to the angle parameter ? is shown in Fig. 3. It is obvious that the amplitude of the velocity variation is minimal for the points at the suspending point zone. The variation of the initial phase has a certain law. 060120180240300360-800-600-400-2000200400600800velocityVmm/sOFig. 3 Velocity component in U direction 16402007 Second IEEE Conference on Industrial Electronics and Applications060120180240300360-600-500-400-300-200-1000100200300400500600 velocityUmm/sOFig. 4 Velocity component in V direction It is shown in equation 10 that the point with the same U component has the same velocity component in the V direction. In other words the V component has no effect on the velocity component in the V direction. The variation of the velocity component in V direction relative to the angle parameter ? is shown in Fig. 4. It is obvious that the amplitude of the velocity variation is decreasing with the decreasing U component. The variation of the initial phase has a certain law. IV. KINETIC CHARACTERISTIC ARGUMENT OF POINTS IN LINER DOMAINTaking the points in the liner domain as a distribution whole, the analysis to the kinetic characteristic of the points and its variation are carried out. The common feature and variation law is shown in the following A. Feature Argument of the Motion PathIt is shown in Fig. 2 that the path of the points is analogous to the ellipse. In order to describe the feature of the path, the maximal distance between two dots on single path is called the long axis, and the angel between the long axis and the X axis is called the gradient. The path gradient of point in the liner scope plane is shown in Fig. 5. It is shown that path gradient of the points in the suspending point has the same value. For the points having the same U component, the gradient is gradually increasing at lower part of liner, and after the maximal value the gradient is gradually decreasing with the increasing of the V component. 040080012001600-100-80-60-40-20020406080100angleVUommFig. 5 Paths gradient of the points in the liner domain 0400800120016000.00.81.0ellipticityUVmmFig. 6 The ellipticity of the points in the liner scope planeThe ration between the longest axis and the shortest axis of single path is called ellipticity that can reflect the basic feature the closed curves. The ellipticity of the points in the liner domain is shown in Fig. 6. The ellipticity of the point having the same U component got the maximal value in the suspending point zone. B. Critical Value of the Motion during the Crushing Process The start points in the U direction during the close and the open process in one operation cycle is shown in Fig. 7. It can be seen that the start of the close process is not simultaneous. However, the calculation indicates that the start of close process of the point with the same V component is simultaneous. C. Distance in the U and V Direction The distance of points in the U direction during one crushing cycle is shown in Fig. 8. It is obviously that the points having the same V component have the same close and open distance, i.e., the distance in the U direction has no relationship with the U component. 040080012001600050100150200250300350Vstart of open processstart of open processOmmFig. 7 The start of the close and the open process in the U direction2007 Second IEEE Conference on Industrial Electronics and Applications1641040080012001600051015202530354045close process open process distancevmmmmFig. 8 The distance of points in the U direction during one crushing cycle -300-200-100010020030081012141618distanceupwar ddownwar dUmmmmFig. 9 Upward and downward distances in the V direction of the points in the liner scope plane The upward and the downward distances in the V direction of the points in the liner scope plane are shown in Fig. 9. The result shows that the points with the same U component have the same distance in the V direction. The distance in V direction is decreasing with the decreasing of U component, which will relive the liner wear. V. CONCLUSIONSA certain domain of the coupler plane and some points in it are chosen to discuss the kinetic characteristic of the crushing interface or the liner. Based on the computation and the analysis of the practical kinetic characteristic of the points in the liner domain, some traditional motion parameters and some kinetic arguments are calculated. According to the requirement for the squeezing motion of different zone in the crushing chamber, the chamber geometry can be improved. The required squeezing motion of the particles in different chamber position is the function of its property, and this will be the job of the next step. REFERENCES1 LIAO HanYuan, KUN JianYi, NIU GuoHui, Jaw crusher, China Machine Press, Beijing, 1998. 2 Qin Zhiyu, Xu Ximin, An Investigation on the Kinematical Characteristics and Capacity of the Compound Swing Jaw Crusher, JOURNAL OF TAIYUAN HEAVY MACHINERY INSTITUTE, VOL 12, pp 97-105, Feb, 1991 3 Qin Zhiyu, Xu ximin, A Method of preoptimization of the Mechanism of Compound Swing Jaw Crusher, JOURNAL OF TAIYUAN HEAVY MACHINERY INSTITUTE, VOL 13, pp 56-63, Feb, 1992 4 Qin Zhiyu, Rong Xingfu, Calculation and Analysis of the Adjusted Width of Discharge opening with Wedge in a Compound Swing Jaw Crusher, JOURNAL OF TAIYUAN HEAVY MACHINERY INSTITUTE, VOL 13, pp 92-98, April, 1992 5. Qin Zhiyu, Rong Xingfu, Analysis and Optimization of Crushing Energy of a Compound Swing Jaw Crusher, JOURNAL OF TAIYUAN HEAVY MACHINERY INSTITUTE, VOL 14, pp 85-98, Jan, 1993 6 FAN Guangjun, MU Fusheng, The Study of Breaking Force of Jaw Crusher, HUNAN METALLURGY, No 14, PP15-17, July, 2001 16422007 Second IEEE Conference on Industrial Electronics and Applications颚式破碎机耦合平面的动力学研究抽象的颚式破碎机是一种体积减少机种，它广泛用于矿物，石料，冶金等领域。颚式破碎机的性能主要取决于班轮在破碎的过程中的动力学特性。为了建立动力学特征参数，在计算结果和分析的基础上完成平面耦合选择并确定独特的摆动特征和运动学参数。在这份工作的基础上设计出一个新型具有更好的结构特征的这种类型的机器，并且了解破碎的特点。关键字 -颚式破碎机，内衬，动力学特征，运动学论据一简介一个颚式破碎机的性能主要取决于该班轮在粉碎过程中的动力学特性。在直线运动中没有翻译，但复杂秋千1。为更好地设计颚式破碎机，直线运动的特点与分析是一必要的基础。 以往的研究多集中注意力于一对曲柄摇杆沿着一条直线的分析或者在曲柄摇杆模型的基础上设计颚式破碎机，其结果不能反映动力学特点和优化点变化趋势，其结果应该用在破碎的接口。在这些传统设计方法中，平面上任意点耦合器的动力学特性和这些特点之间的相关性不能完全描述。在本文中，选择所谓的班轮平面耦合器去讨论其班轮动力学特性或其在域中破碎接口。在计算以及分析一条平行线的耦合线的实际动力学特性的基础上，确定并一些动力学特征参数去计算,分析和设计。在这份工作的基础上设计出一个新型具有更好的结构特征的这种类型的机器，并且了解破碎的特点。 二 选择计算的内衬点颚式破碎机就是对其中一个破碎力接口的破碎力分析，换句话来说，就是发生在有直接联系的物质与材料之间。因此，接口对颚式破碎机破碎功能有很大的影响。衬垫在截面曲线上，也给出定义了一个曲柄摇杆模式表面的耦合曲线。然而内衬点在不同的耦合平面具有不同的运动特点，沿在计算领域的衬垫点运动在简单的曲柄摇杆模式直线耦合器上有很大的不同。因此，有必要根据他们运动所产生的不同内衬点与运动特征，去选择一个具有破碎特点的摇摆内衬的耦合曲线。 在曲柄摇杆模型的基础上，颚式破碎机系统的计算示意图如图1所示。静态坐标XOY和动态坐标UCV。虽然一个固定的工作衬垫的形状和位置通常由颚式破碎机的悬挂点决定，但是一个衬垫的计算会在一个曲线的衬垫域完成。因此，不同的衬垫点的计算将会在不同的时间到达他的极限点。传统设计上，极限点通常由设计因素或参数来描述衬垫的运动特点，并决定水平运动的距离。但众所周知，施加在压裂材料的破碎力在衬垫的法线方向上。每一个周期衬垫点的法线方向。因此，每一个法线方向上的极限点的距离与水平运动的位移都不同。为了描述衬垫域的动力学特征点，单颚式破碎机PE400*600作为例子计算和分析了分布式动力学特征。PE400600的计算参数列于表一为了说明在衬垫域点的议案，我们需要确定衬垫域。选择一些平行于BC的平面，每个平面成20等份划分。在U方向，7个均匀分布的点均选自- 300至300，在V方向21个均匀分布的点选自-200至1800。因此，在V上有21个点来计算去确定U。随着对计算点和上述选择的衬垫域的确定，计算结果显示在如下。图。1颚式破碎机草图表IPE400 600颚式破碎机计算参数（毫米）其中r为曲柄AB，l是耦合
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